Volcanoes

Due to Costa Rica's close proximity to a tectonic plate boundary, the county has several major volcanoes that have formed throughout the country. Costa Rica is home to six active volcanoes, as well as sixty-one dormant or extict volcanoes. Costa Rica's volcano, Arenal, is one the most notible volcaones of the country. Arenal was one of the most active, in the country, until it entered a resting phase in 2010. The Poas volcano remains one of the most active volcano, but it was not had a major eruption since 1910. These volcaones and many others located in Costa Rica, have become major tourist attractions in Costa Rica. 

To keep citizens safe from a possible volcanic eruption, Costa Rica may shut down a national park where a volcano is located. In May of 2018, the Poas Volcano Natioanal Park was closed due to safety reasons, and this has also happened at the Turrialba National Park as well. Costa Rica does not use an early warning system, when it comes to possible eruptions of these volcanoes. It seems like the  only safety measure they take is to shut down the park and to try and keep as many people as possible away from the danger. 

References

https://www.arenal.net/volcanoes-costa-rica

https://news.co.cr/tourists-and-businesses-impatient-for-poas-volcano-national-park-in-costa-rica-to-reopen/73127/